Improvement in the construction of metallic cornice



- waited ,gitana sind r (hijita JOSEPH M. BLACKBURN, CLLABLEs'L. WOOD, BENJAMIN K. PRICE, AND

CORNELIUS A. sHEBIDAN, OE CLEVELAND, OHIO.

Leners Palm-Na. 101,572, dated Apro 5, 1870.

IMPROVEMENT IN THE CONSTRUCTION OF METALLIC CORNICE.

The Schedule referred to in these Letters Patent and making part 0f the same.

To all whom it may concern:

Be it known that we, JOSEPH M. BLACKBURN, CHARLES L. WOOD, BENJAMIN K. PRICE, and Con- NELIUS A. SHERIDAN, of Cleveland, in thecounty of Cuyahoga and State ot' Ohio, have invented certain new Improvements in the Construction of Metallic Cornice; and we do hereby declare that the following is a. full, clear, and complete description of the same, reference being had to the accompanying drawings -making part of this specification, in which drawings- Figure 1 is afront view of the cornice.

Figure 2 is a side view.

Figure 3, a view of the inside or back.

Figures 4 and 5, detachedtransverse sections.

,'Like letters of reference refer to like part-s in the ,several views.

This invention relates to the manner of constructthe joints of metal cornices, and forming the braces, whereby said cornice is strengthened-and made to retain its given shape.

It also relates to the nia-nner of attaching and securing said cornice to the ceiling v 1t further relates to the use of the cornice for ventilation, all of which is hereinafter more fully described.

In 'the construction of metal cornioes, the brace secured to the back or inside thereof', for the purpose of strengthening andpreserviug the style of the molding usually consists oi' a plate of' metal, the edge of which is closely fitted to the inside of' the cornice and thereto soldered. The objection to this kind of brace is that the thin edge ofthe brace indents the cornice, thereby producing a ridge upon ihe outside or face of the molding.

v It is also a matter of much ditiiculty to solder the brace to the cornice, more especially when the cornice is made up of many members and ofslnall size, which is often the case in elaborate moldings. To avoid this injury to the face of the cornice by indentation, we solder to the end of the brace A, iig. 1, (a transverse detached section of which is shown in tig. 5,) a strip of met-al, B, forming thereby a wing or flange on each side of the brace, as seen in tig. 5, in which A represents a transverse view of the 'bx-ace, B the flanges, and C the cornice or section thereof.v

It will be obvious that by this means the edge oi' the brace does not come in immediate contact with the cornice, but iuterpose between it and the cornice is the strip or flange B, thereby protecting the molding from being indented by the. edge oi the brace, and a'ordiug a wide surface for the support of the molding, rendering it much stronger and more durable. Said flanges, by their width, are easily soldered to the cornice, the brace offering no obstruction to the application of the soldering-iron along the sides of the flanges. This manner ot' attaching the brace tothe cornice is much stronger than that usually practiced, .and can be done in much less time. As long lengths of' metal cornice are made up in sections, the joints thereof are made by abutting the ends together and soldering the joints upon the inner side. This manner ot' connection requires much care to perform, and unless it is skillfully done and heavily soldered, it is liable to break asunder at the joint.

To avoid this extraordinary care and waste of solder,

we solder a strip of metal, D, along the under side of n the end of section of cornice, so that it shall project a little beyond, as shown in lig. 1. In said figure, C is the cornice and l) the strip of metal projecting a little beyond the end thereof, forma narrow flange.

A section oi' cornice'corresponding to this is fitted to it by an abutting-joint. The liange or` stripD whl therefore lap over ou to it and cover the seam on the back side, which is then soldered tothe added section.

By this means the edges of the -two sections are held in exact relation to each other, and the joint strengthened liyv the strip 1), thereby making a strong joint and the face of the cornice ush and smooth at the junction ot`- the several sections.

The line a, fig. 5, shows the seam of the joint, and D the strip covering said joint, a vcontinuation of' which is indicated by the dotted line b.

rllielnanner of attaching the cornice to the ceiling and wall is shown in fig. 2, iu which E are the joists, to which the. lath F are nailed, andG isthe plastering.

1t will be observed that the edge H of the cornice is inserted under a lath, and therewith nailed to the joist. This being done, the plastering is now pnt on in the usual manner. V

The lower edge of the cornice is attached to the wall'in like manner, viz: by inserting the lower edge- I betweenlthe lath J .and studding K, before the plas ter l is put ou. A transverse section of the cornice` and lath is shown in fig. 4; no plaster is shown.

A current of air is established between the rooms and the. out-side oli the building for ventilation, by means of a tube, M, fig. 3, running lengthwise through the cornice and communicating with the room by'aseries of-perforations, C, iliade in some obscure angle of the molding, away from observation.` v

Said tube communicates with theoutside by means of rents, N, which are projected into the fines built in the walls, or into the chimneys of the building.

By this lncuns a direct iiow of airfrom without to the inside, and from the inside to the without, is secured, thereby obtaining a complete ventilation of the rooms. By carefully constructing the cornice in a. close and tight manner,'aud attaching the same to the 'walls and ceiling so that there shall be no leakage to prevent the production of a draught, the tube Mv referred to may be dispensed with, the cornice of itself answering this particular as a. tube.

Claims.

ing and wall by inserting the edge H thereof between the joist E, studding K, and lath F J, substantially as described.

3. The tube M and vents N, as arranged in combination with the cornice C and fines, substantially in the manner as described, and for the purpose set forth.

J. M. BLACKBURN. B. K. PRlOE. C. L. WOOD; C. A. SHERIDAN.

Witnesses:

W. H. BURRIDGE, J. H. BURBIDGE. 

